Steel T-welded joint structures have been largely applied in aerospace and marine
infrastructures. The weld length in T-weld joint structures is usually long, and it is difficult to …

In our previous research, the second harmonic generation (SHG) of feature guided waves
(FGWs) in a welded joint with material nonlinearity was analyzed theoretically and observed …

Extensive research has been conducted on zero-group-velocity (ZGV) Lamb waves in
elastic plates, demonstrating significant progress in the field of nondestructive testing …

Structural elements with edges are widely used across many industries and applications;
examples include tapered flange beams and the footing of rail tracks. The distant defect …

Cumulative second harmonic generation (SHG), where the amplitude of the generated
second harmonic increases with propagation distance, is commonly utilized to enhance the …

Guided ultrasonic waves are attractive screening tools for elongated engineering structures
due to their ability to propagate over long distances and flexibility in selecting mode …

This paper investigates acoustic field characteristics of shear-horizontal feature guided
waves (SH-FGWs) propagating through topographic waveguides like welds and stiffeners in …

Detecting near-edge damage in composite structural elements using guided wave-based
techniques can be challenging, primarily due to the complexity of wave analysis arising from …

Fatigue cracks often initiate and propagate from edges of structural components. Detection
and evaluation of edge cracks could be very challenging, specifically, due to the crack …

Thin-walled structural components are common in engineering design across many
industries and applications. These components are often subjected to cyclic loading, which …